Evaluation of the socio-environmental impact of the Yanarumi rainwater seeding reservoir, Guano canton
DOI:
https://doi.org/10.37135/ns.01.08.08Keywords:
ancestral technique, environmental impact, water harvesting, water scarcity , páramo, rainwater harvesting, social impact, SROIAbstract
The objective of this research was to determine the environmental and social impact of the ancestral technique of rainwater harvesting through the analysis of the Yanarumi rainwater collection system, located in the San Carlos páramo, Valparaíso parish, Guano canton, Chimborazo province, Ecuador. The Yanarumi system consists of an uncovered excavation that collects precipitation by natural infiltration and transports it to spring before its use; since 2013, the system has been supplying irrigation water to the sector's population. The cause-effect and the moment matrix methodology were used to evaluate the environmental impact (quantitative and qualitative). In addition, the social return on investment (SROI) methodology was used to evaluate the social impact. The results obtained showed negative impacts in the construction stage of the system but positive in the operation stage; regarding the SROI, it resulted in a positive benefit/cost ratio of 4.26 USD. These findings suggest: (1) these water harvesting systems are environmentally friendly and (2) the convenience of implementing ancestral water use systems in water-deficient areas.
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Araújo, C. V. M., Moreira-Santos, M., Sousa, J. P.,Ochoa-Herrera, V., Encalada, A. C., & Ribeiro, R. (2014). Contaminants as habitat disturbers: PAH-driven drift by Andean paramo stream insects. Ecotoxicology and Environmental Safety, 108, 89–94. https://doi.org/10.1016/j.ecoenv.2014.06.034
Buytaert, W., Célleri, R., De Bièvre, B., Cisneros, F., Wyseure, G., Deckers, J., & Hofstede, R. (2006). Human impact on the hydrology of the Andean páramos. Earth-Science Reviews, 79(1-2), 53-72, https://doi.org/10.1016/j.earscirev.2006.06.002
Camacho, M. (2014). Los páramos ecuatorianos: caracterización y consideraciones para su conservación y aprovechamiento sostenible. Revista Anales, 1(372), 77–92. https://doi.org/10.29166/anales.v1i372.1241
Célleri, R., &Feyen, J. (2009). The hydrology of tropical andean ecosystems: Importance, knowledge status, and perspectives. Mountain Research and Development, 29(4), 350–355. https://doi.org/10.1659/mrd.00007
Conesa Fernandez - Vitora, V., Conesa Ripoll, V., Conesa Ripoll, L. A., & Estevan Bolea, M. T. (2010). Guía metodológica para la evaluación del impacto ambiental (4a. ed.). Madrid: Mundi-Prensa.
Harden, C. P. (2006). Human impacts on headwater fluvial systems in the northern and central Andes. Geomorphology,Volume 79, 249-263. https://doi.org/10.1016/j.geomorph.2006.06.021
Finer, M., Jenkins,C. N., Pimm, S. L., Keane, B., & Ross, C. (2008). Oil and gas projects in the Western Amazon: Threats to wilderness, biodiversity, and indigenous peoples. PLoS ONE, 3(8). https://doi.org/10.1371/journal.pone.0002932
Leopold, L., Clarke, F., Hanshaw, B & Balsley, J. (1971). A procedure for evaluating environmental impact. GEOLOGICAL SURVEY CIRC 645. Washington: U.S. Geological Survey, 13pp. https://doi.org/10.3133/cir645
MAE. (2012). Sistema de Clasificación de Ecosistemas del Ecuador Continental. Ministerio Del Ambiente. http://app.sni.gob.ec/sni-link/sni/PDOT/NIVEL NACIONAL/MAE/ECOSISTEMAS/DOCUMENTOS/Sistema.pdf
MAE. (2012). Estudio de potenciales impactos ambientales y vulnerabilidad relacionada con las sustancias químicas y tratamiento de desechos peligrosos en el sector productivo del ecuador (pp. 1–63). https://www.ambiente.gob.ec/wp-content/uploads/downloads/2013/03/PART11.pdf
Mena Vásconez, P., Castillo, A., Flores, S., Hofstede, R., Josse, C., Lasso, S., Medina, B. G., Ochoa, N., & Ortiz, D. (2011). Páramo. www.abyayala.org
Millar, R & Hall, K (2012). Social Return on Investment (SROI) and Performance Measurement. Public Management Review, 923-941. https://doi.org/10.1080/14719037.2012.698857
Murtinho, F., Tague, C., de Bievre, B., Eakin, H., & Lopez-Carr, D. (2013). Water Scarcity in the Andes: A Comparison of Local Perceptions and Observed Climate, Land Use and Socioeconomic Changes. Human Ecology, 41(5), 667–681. https://doi.org/10.1007/s10745-013-9590-z
Ortiz, M., Navarrete, J., & Suarez, T. (2005). Páramos: Hidrosistemas Sensibles. In Ecology.
Podwojewski, P., Poulenard , J., Zambrana, T., & Hofstede, R. (2006). Overgrazing effects on vegetation cover and properties of volcanic ash soil in the páramo of Llangahua and La Esperanza (Tungurahua, Ecuador). Soil use and managment, 45-55.
Poulenard, J., Podwojewski, P., & Herbillon, A. (2003). Characteristics of non-allophanic Andisols with hydric properties from the Ecuadorian páramos. Geoderma, 267-281.
Sánchez, B. E. (2019). Universidad Nacional de Chimborazo. Diseño e Implementación de Sensores para medir temperatura, humedad, caudal de la fuente de agua “Yanarumi” perteneciente al cantón Guano. http://dspace.unach.edu.ec/bitstream/51000/5794/1/UNACH-EC-ING-ELE-TEL-2019-0004.pdf
Soriano, L., Ruiz, Ma. E., & Ruiz, E. (2015). Criterios de evaluación de impacto ambiental en el sector minero. Industrial Data, vol. 18, núm. 2, pp. 99-112. https://doi.org/10.15381/idata.v18i2.12102.
Viviroli, D., Weingartner, R., Viviroli, D., & Weingartner, R. (2004). The hydrological significance of mountains: from regional to global scale. Hydrology and Earth System Sciences, 8(6), 1016–1029.
